Search found 1778 matches

by gwhy!
May 18, 2016 4:32 pm
Forum: Items for Sale - New
Topic: Hall throttle conversion upgrade
Replies: 131
Views: 12656

Re: Hall throttle conversion upgrade

No problem, I've been waiting with patience since last august. Take your time and make things work right. A new and even better mechanical throttle is even more exciting so we will hang in there for the the last and final lap. I really look forward to receiving the throttle package. Are your arm pr...
by gwhy!
May 18, 2016 1:10 am
Forum: Items for Sale - New
Topic: Hall throttle conversion upgrade
Replies: 131
Views: 12656

Re: Hall throttle conversion upgrade

Hi guys yes been away for awhile and not doing anything much with anything , been back about a week and catching up on stuff , I have boxes ready to be tested and sent out But I have also been redesigning the hardware to make it a bit more stealth and smaller. I wll post some pics soon of the new de...
by gwhy!
May 13, 2016 6:31 am
Forum: E-Bike Technical
Topic: Hall Hidden Brake Sensor used as Throttle (?)
Replies: 2
Views: 283

Re: Hall Hidden Brake Sensor used as Throttle (?)

it could work if its a linear ratiometric sensor that is sprung loaded to return back to zero output. There is not enough information to say if it will work or not.
by gwhy!
Apr 18, 2016 3:53 pm
Forum: E-Bike Technical
Topic: Gyro for controlled Wheelies
Replies: 149
Views: 12411

Re: Gyro for controlled Wheelies

Offroader wrote:Does anyone know if it is better to set the throttle in Max-E, to speed mode or torque mode when trying to do a wheelie?
just thinking about it logically torque mode would be better
by gwhy!
Mar 18, 2016 3:15 pm
Forum: E-Bike Technical
Topic: Wanted...Twist throttle with regen braking included
Replies: 23
Views: 2350

Re: Wanted...Twist throttle with regen braking included

you could use a couple of my throttle boxes and a push/pull mc throttle .. maybe :!:
by gwhy!
Mar 09, 2016 6:39 am
Forum: Items for Sale - New
Topic: Hall throttle conversion upgrade
Replies: 131
Views: 12656

Re: Hall throttle conversion upgrade

I have 50% of them finished from this batch , I have had to order some more supplies to finish the rest , so should not be to long now before they are ready to be sent. I have had so much on ( needed to catch up with since my hand injury ) I under estimated just how much I have have let slip !..
by gwhy!
Feb 28, 2016 9:35 am
Forum: E-Bike Technical
Topic: Could use some advice on paralleling two controllers.
Replies: 10
Views: 465

Re: Could use some advice on paralleling two controllers.

I have never seen this in a working setup and have my doubts if it will work reliably or even work at all .. but the black wires would need to be connected together but only use one 5v supply from just one controller..
by gwhy!
Feb 28, 2016 9:19 am
Forum: E-Bike Technical
Topic: Could use some advice on paralleling two controllers.
Replies: 10
Views: 465

Re: Could use some advice on paralleling two controllers.

so you have 6 phase wires from the motor ? and 2 sets of hall sensors in the motor ?

edit or 3 phase wires from motor and 1 set of halls
by gwhy!
Feb 28, 2016 6:06 am
Forum: E-Bike Technical
Topic: Fried Controller - IRFB3006 Rebuild?
Replies: 3
Views: 268

Re: Fried Controller - IRFB3006 Rebuild?

why would you put 100V caps into a controller that will only be able to take around 50V max if you use 3006's ?
what fets did it have in it originally?
by gwhy!
Feb 09, 2016 6:09 pm
Forum: Items for Sale - New
Topic: Hall throttle conversion upgrade
Replies: 131
Views: 12656

Re: Hall throttle conversion upgrade

I have ordered the stuff and parts should start to arrive by the end of this week, then approx 1-2 weeks to get them made and tested.
by gwhy!
Feb 07, 2016 12:44 pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Mystery solved: Why so many new 'cycles crashed - new tires!
Replies: 15
Views: 1557

Re: Mystery solved: Why so many new 'cycles crashed - new ti

Yes different for any offroad stuff, as you rely on sharp edges on the knobbles for the grip.
by gwhy!
Feb 07, 2016 7:50 am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Mystery solved: Why so many new 'cycles crashed - new tires!
Replies: 15
Views: 1557

Re: Mystery solved: Why so many new 'cycles crashed - new ti

Here you go, this article explains why new tyres can have less grip than worn in/scrubbed tyres.
http://motorbikewriter.com/break-new-se ... cle-tyres/
by gwhy!
Jan 26, 2016 2:31 pm
Forum: E-Bike Technical
Topic: low voltage cut off
Replies: 10
Views: 605

Re: low voltage cut off

most controllers have a ignition wire that uses a very low current to turn the controller on and off so nearly anything can be used to switch it on or off, when the controller is off the lv side of the controller circuit is not powered so there should be no main current flowing as all the fets in th...
by gwhy!
Jan 25, 2016 11:20 am
Forum: E-Bike Technical
Topic: low voltage cut off
Replies: 10
Views: 605

Re: low voltage cut off

you could use a lv alarm and invert the output to turn off a small latching relay in the ignition wire of the controller..

Edit: push button to turn bike on and lv alarm to unlatch the relay
by gwhy!
Jan 25, 2016 9:43 am
Forum: Items for Sale - New
Topic: Hall throttle conversion upgrade
Replies: 131
Views: 12656

Re: Hall throttle conversion upgrade

Supply's will be bought at the end of this month ready to start the next batch, they normally take upto 4weeks from ordering supply's to being ready to post, up to now there are 16 ordered from the next batch ( that includes everyone in the thread upto this post that have asked to be added to the li...
by gwhy!
Jan 20, 2016 3:36 pm
Forum: E-Bike Technical
Topic: lyen mk2 settings
Replies: 9
Views: 459

Re: lyen mk2 settings

you need to be careful and think about the settings you have chosen, a 18fet will only be reliable upto around 225A and this dont matter what current the fets are rated at .. this 225A also comes into play with the phase current limit ... so if you have followed the rule of thumb guides i.e phase c...
by gwhy!
Jan 20, 2016 5:24 am
Forum: E-Bike Technical
Topic: lyen mk2 settings
Replies: 9
Views: 459

Re: lyen mk2 settings

you need to be careful and think about the settings you have chosen, a 18fet will only be reliable upto around 225A and this dont matter what current the fets are rated at .. this 225A also comes into play with the phase current limit ... so if you have followed the rule of thumb guides i.e battery ...
by gwhy!
Jan 18, 2016 1:07 pm
Forum: E-Bike Technical
Topic: Connecting 2 x 48V 15Ah kettle battery packs in parallel
Replies: 23
Views: 822

Re: Connecting 2 x 48V 15Ah kettle battery packs in parallel

just make sure that both batterys voltages are within a volt each other before you join them up.. you dont want to connect a flat battery in P with a fully charged battery that would not be a good idea :shock:
by gwhy!
Jan 12, 2016 3:01 pm
Forum: E-Bike Technical
Topic: Controller reliability? help
Replies: 20
Views: 892

Re: Controller reliability? help

thats ok.. I sort of guessed that what may of happend , but i had to re-read my post about 3 or 4 times just incase I did do a typo :mrgreen:
by gwhy!
Jan 12, 2016 2:41 pm
Forum: E-Bike Technical
Topic: Controller reliability? help
Replies: 20
Views: 892

Re: Controller reliability? help

sorry dont see your point ? VI=W Didnt I type 10v @ 10A = 100W .. 1v @ 100A still = 100W 10x10=100 is the same as 1x100=100 :!: but it looks like you are getting the hang of how to use a calculator because what you typed is also correct 100V x 10A = 1000W .. so you must be learning something :wink:
by gwhy!
Jan 12, 2016 2:09 pm
Forum: E-Bike Technical
Topic: Controller reliability? help
Replies: 20
Views: 892

Re: Controller reliability? help

That's interesting I never did check the no load current.... seemed to run through some 0.5a wire on testing though. I will check that on the next controller in case that was the cause of breaking the FETs. I kinda hope it wasn't that. Thanks for that vital information Not really sure who to trust ...
by gwhy!
Jan 12, 2016 1:17 pm
Forum: E-Bike Technical
Topic: New Batteries, Low Milage
Replies: 9
Views: 460

Re: New Batteries, Low Milage

if your sla's are 10ah and your bike pulls 10A when on the flat then you would be only looking at a usable capacity of around 5ah this would be with a good sla battery .. so if its a bad one this would be a lot less, the smaller sla's only have a C rating of around 0.5C and this should give you 100%...
by gwhy!
Jan 12, 2016 4:09 am
Forum: E-Bike Technical
Topic: Controller reliability? help
Replies: 20
Views: 892

Re: Controller reliability? help

Yeah, I could see how that might work in the UK where average temps are ~50F, and you only run about 10 minutes at 6.5KW. That's about how long a 1Kwh battery pack would last at those power rates. Wouldn't work long here with temps over 100F. Thats on a indoor race track so no where near that cold ...
by gwhy!
Jan 11, 2016 5:30 pm
Forum: E-Bike Technical
Topic: Controller reliability? help
Replies: 20
Views: 892

Re: Controller reliability? help

The control processor (Infineon) has nothing to do with the power rating of the motor controller. It's just a signal processor. The only power that will run through it is the operational power of the chip. It's how the rest of the controller board is built that will set the operational values of th...
by gwhy!
Jan 11, 2016 5:04 pm
Forum: E-Bike Technical
Topic: Controller reliability? help
Replies: 20
Views: 892

Re: Controller reliability? help

yes a ftdi serial converter should do the job... you can get what people call a false positive with the wire combos so the only true way to see if you have a good wire combo is to test the no-load current at WOT and for a 'run of the mill' hub it should be definitely no more than 2A ( prob around 1....